Removing and installing Haldex coupling, Audi A3, TT — AUDI

🧭 Before you start

Fits: Audi A3 (8P, 2003–2012), Audi TT Mk2 (8J, 2006–2014)

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• Risk of damage to flexible joints in exhaust system.The flexible joint in the front exhaust pipe must not be bent further than 10°. — Disconnect exhaust system at clamp (arrows).

📋 Procedure

1. ⚠ Risk of damage to flexible joints in exhaust system.The flexible joint in the front exhaust pipe must not be bent further than 10°. — Disconnect exhaust system at clamp (arrows).
2. Tie up front exhaust pipe on underbody.
3. Remove rear section of exhaust system: Audi A3 Engine, mechanics26; Audi TT 26Exhaust pipes/silencers; Exploded view - silencers.
4. Remove flexible coupling (rear) .
5. Unplug connector (2) on all-wheel drive control unit J492.

6. Place used oil collection and extraction unitV.A.G 1782 below rear final drive.
7. Remove drain plug (A) and drain high performance oil for Haldex coupling completely.
8. Fit drain plug (A) with new seal.
9. Unscrew securing bolts (arrows) and remove Haldex coupling from rear final drive.
10. Remove old O-ring (arrow) from Haldex coupling.
11. Insert new O-ring (arrow) and lubricate lightly with high-performance oil for Haldex coupling.
12. Insert Haldex coupling (1) into rear final drive. Screw in guide pins T10093 for exact fitting.
13. Insert Haldex coupling as far as stop (turn propshaft flange (2)).
14. Tighten bolts (arrows) to specified torque .
15. Plug connector (2) into all-wheel drive control unit J492.
16. Install flexible coupling (rear) .
17. Install exhaust system and align so it is free of stress: Audi A3 Engine, mechanics26; Audi TT 26Exhaust pipes/silencers; Exploded view - silencers.
18. Fill up with high-performance oil for Haldex coupling and check oil level in Haldex coupling .

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